Inventor · disambiguated record
Keiji Nakajima
Also filed as: NAKAJIMA KEIJI
7 granted patents·5 pending applications·97 citations·filing 1985–2017
85Inventor score
Files withDAINICHISEIKA COLOR CHEM3MAEHARA YASUHIRO3NAKAJIMA KEIJI2MITSUBISHI KENKI1NIPPON STEEL & SUMITOMO METAL CORP1
Top patents by PatentIndex Score
12 records- 0170US5814434AComposition for black matrix, fabrication process of black matrix and article provided with black matrixDAINICHISEIKA COLOR CHEM·Filed 1996·Granted Sep 29, 1998·43 cites·11 claims
- 0268US10023940B2Copper alloy and process for producing the sameMAEHARA YASUHIRO·Filed 2006·Granted Jul 17, 2018·2 cites·9 claims
- 0366US6368399B1Composite pigments, coloring compositions, and image recording substancesDAINICHISEIKA COLOR CHEM·Filed 2000·Granted Apr 9, 2002·11 cites·27 claims
- 0464US10106870B2Copper alloy and process for producing the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Granted Oct 23, 2018·0 cites·4 claims
- 0548US5036544AApparatus for discriminating linearity of line segment in image processing systemMITSUBISHI KENKI·Filed 1989·Granted Jul 30, 1991·22 cites·8 claims
- 0645US2006180293A1Continuous casting mold and a continuous casting method of copper alloySUMITOMO METAL IND·Filed 2006·Application pending·0 cites
- 0740US2009120879A1Material For Transfer Of Substance In Liquid Comprising Polymer BlendSHIGA PREFECTURE·Filed 2006·Application pending·0 cites
- 0839US6258503B1Production process of colored fine particulate composition and colored fine particulate composition produced by the processDAINICHISEIKA COLOR CHEM·Filed 1998·Granted Jul 10, 2001·9 cites·25 claims
- 0939US2007062619A1Copper alloy and process for producing the sameMAEHARA YASUHIRO·Filed 2006·Application pending·0 cites
- 1036US4643424ABall for ballgames and manufacturing process thereofNAKAJIMA KEIJI·Filed 1985·Granted Feb 17, 1987·10 cites·1 claims
- 1133US2013121870A1Ferritic stainless steel, with high and stable grain refining potency, and its production methodNAKAJIMA KEIJI·Filed 2011·Application pending·0 cites
- 1232US2010189593A1Copper alloy materialMAEHARA YASUHIRO·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →